EP 4042556 A1 20220817 - METHOD FOR CONTROLLING THE CURRENT OUTPUT OF A BATTERY
Title (en)
METHOD FOR CONTROLLING THE CURRENT OUTPUT OF A BATTERY
Title (de)
VERFAHREN ZUR STEUERUNG EINER STROMABGABE EINER BATTERIE
Title (fr)
PROCÉDÉ DE COMMANDE DE LA SORTIE DE COURANT D'UNE BATTERIE
Publication
Application
Priority
- DE 102019219677 A 20191216
- EP 2020083407 W 20201125
Abstract (en)
[origin: WO2021121890A1] The invention relates to a method for controlling the, current output of a battery, wherein the battery is used as a traction battery for driving a rail vehicle. A battery actual current Ibat,ist passes, as a three-phase alternating current, via a converter STR (DCDCW, ZWK, DCACW) to an asynchronous motor (ASM), which is used as the drive for the rail vehicle. The battery actual current Ibat,ist is set with the help of control circuits (Masm controller, Uzk controller, Ibat controller) as a function of a feedforward control torque Mff and a specified torque Mtf . The feedforward control torque Mff is calculated using a transfer function Hsys (z), which maps the torque setpoint value Msoll onto the battery actual current Ibat,ist as follows: Ibat(z) Hsys(z) Msoll(z). According to the invention, a zero point z=znmp, which lies outside the unit circle, is determined by the transfer function Hsys(z). The feedforward control torque Mff is calculated as follows: Μff(z) Ibat,neu(z) / (Hsys(z) z) where: Ibat,neu(z) = Ibat,ideal(z) - Ibat,ideal(z=znmp) where: Ibat,neu[n] = Ibat,ideal[n] for all n > 0, so that pole point/zero point cancellation is reached by z = znmp at the battery ideal current Ibat,ideal.
IPC 8 full level
CPC (source: EP US)
B60L 15/025 (2013.01 - EP); B60L 15/20 (2013.01 - EP); B60L 50/60 (2019.01 - EP); H02J 7/0063 (2013.01 - US); H02J 7/00714 (2020.01 - US); H02J 7/345 (2013.01 - US); H02P 1/26 (2013.01 - EP); H02P 23/30 (2016.02 - US); B60L 15/20 (2013.01 - US); B60L 50/51 (2019.01 - US); B60L 50/60 (2019.01 - US); B60L 2200/26 (2013.01 - EP US); B60L 2210/40 (2013.01 - US); B61C 3/00 (2013.01 - US); H02J 7/0063 (2013.01 - EP); H02J 2207/20 (2020.01 - US); H02J 2310/48 (2020.01 - EP US); H02P 2207/01 (2013.01 - EP US); Y02T 10/70 (2013.01 - EP)
Citation (search report)
See references of WO 2021121890A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2021121890 A1 20210624; CN 114788160 A 20220722; EP 4042556 A1 20220817; US 2023045807 A1 20230216
DOCDB simple family (application)
EP 2020083407 W 20201125; CN 202080087244 A 20201125; EP 20824099 A 20201125; US 202017786034 A 20201125